Thor's Egg Hunt plays on a 6x6 grid where wins are formed by landing clusters of four or more matching symbols. Instead of traditional spinning reels, symbols drop from above to fill the grid. When a cluster win occurs, those symbols are removed and replaced by new ones falling into the empty spaces. This cascading mechanic allows for multiple wins on a single spin.

Each consecutive cascade increases the active win multiplier, which applies to the total payout for that spin. The game includes various egg symbols and special icons that trigger bonus features.